Wrench.



' No. 708,183. Patented Sept. 2, I902.

M. WALSH & J. N. ANGERS. wnancu.

(Application filed Jan. 24, 1902.)

' (No Mode| WITNESSES: v

' ZM HQRNEY UNITED STATES PATENT OFFICE.

MICHAEL WALSH AND JOSEPH N. ANGERS, OF BAY CITY, MICHIGAN.

- WRENCH.

SPECIFICATION forming part of Letters Patent No. 708,183, datedSeptember 2, 1902. Application filed January 24,1902. Serial No. 91,055.(No model.)

.To all whom, it may concern:

Be it known that we, MICHAEL WALSH and JOSEPH N. ANGERS, citizens of theUnited States, residing at Bay City, in the county of Bay and State ofMichigan, have invented certain new and useful Improvements in Wrenches;and we do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in pipe-wrenches, the object ofthe invention being to provide simple means for holding the jaw-lockingmechanism in place and means to facilitate adjusting the wrench tovarious sizes of pipe and to produce these results by constructionsrequiring only a small amount of machine-work or hand-fitting inadjusting and assembling the various parts "of the wrench.

With these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, ashereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side view illustrating awrench embodying our improvements. Fig. 2 is a perspective detail of themovable jaw. Fig. 3 is a perspective detail of the dog or pawl and thelink and spring by which it is operated. Fig. 4 is a detail of thepivoted lever. Fig. 5 is a detail showing the presser-spring and itsposition relatively to the depressions in the shank of the wrench.

A represents the shank of the Wrench, having teeth 1 on itslower edgeand carrying the outer jaw 2. r

B represents the movable jaw, having an opening 8, through which theshank A slides.

at is a wedge-shaped opening through one.

D is a dog or pawl having a contracted lower portion 9 and terminatingin the large cylindrical portion 1Q, adapted to fit the opening 6 of thejaw 13.. The cylindrical part 10 of the pawl D is inserted sidewise intothe opening 6 and can only be removed therefrom by withdrawing itsidewise.

The link E is pivoted at its upper end to the pawl D and extends downinto the slot 8, Where its lower end is pivoted to the end of the leverO. This lever has a projecting thumb-piece 11. A coiled springF ismounted on the link E between the pawl D and the face 12 of the opening4 and operates to press the pawl normally upward. When the end 11 of thelever O is pressed upward, the pawl is drawn down and disengaged fromthe teeth 1, so that the jaw B may be slid back along the shank A.

On the upper face of the shank A are shallow depressions G, into whichthe lower end of the presser spring H drops, with a slight tendency toretard the slid-ing of the jaw B as it is slid along the shank. Theupper end of the spring H is secured to the top of the jaw B and iscovered thereby; In practice We prefer to space the depressions G sothat the spring H will drop in when the jaws 2 and B are properly set totake a standard size of pipe, thus aiding the operator in quicklyadjusting the wrench.

It will be noted that the thrust of the inner jaw is transmitted throughthe dog D to the teeth 1 direct without any intermediate pins or pivotsalso, that our construction permits the pawl to be quickly removed andreplaced and that the intermediate link E between the pawl and the leverC prevents any strain being brought upon the pivot of that lever.

What we claim as our invention, and desire to secure by Letters Patent,is

1. In combination with the movable jaw, the wedge-shaped opening in oneside there of, said opening having a contracted lower end; thetransverse part-cylindrical recess; the central vertical slot; thepivoted lever mounted therein; the upwardlyextending link; the spring onsaid link; the pawl having a cylindrical lower end and pivotallyconnected near its upper end with the upper end of the link, allarranged substantially as described and for the purposes set forth.

2. In a wrench of the class described, the combination of the shankhaving shallow depressions in its face, with the sliding jaw;

and a spring mounted within said jaw and end of said spring beingarranged to engage having its end adapted to slightly engage said saiddepressions, all arranged for the purdepressions when the jaw is slidalong the poses set forth.

shank, for the purpose set forth. In testimony whereof we alfix oursigna- 5 3. In a wrench of the class described, the tures in presence oftwo witnesses.

combination of a sliding jaw having a part- MICHAEL WALSH.

cylindrical transverse recess; a pawl; a link JOSEPH N. ANGERS.

and lever for depressing said pawl; a wrench- \Vitnesses:

shank having shallow depressions in its face; I. GOULD,

IO and a spring carried by the sliding jaw, the JAMES C. HANSON.

